Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

This enormous fiberglass cow near Death Valley National Park once graced a casino roof in Las Vegas.

The drama of nature in full effect in this Nevada State Park.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

A much-maligned monument to teetotalism.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

This vast and otherworldly landscape is one of the largest dune complexes in North America.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

A preserved trolley track that was transformed into a museum of transportation.

This sculpture commemorates the first instance of an American president pardoning a turkey.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Who knew the Devil's domain was a hot spot for tubing?

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.